/
measure.go
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/
measure.go
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// Copyright 2022-2023 Tigris Data, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package middleware
import (
"context"
"strconv"
middleware "github.com/grpc-ecosystem/go-grpc-middleware/v2"
"github.com/rs/zerolog/log"
api "github.com/tigrisdata/tigris/api/server/v1"
"github.com/tigrisdata/tigris/errors"
"github.com/tigrisdata/tigris/server/config"
"github.com/tigrisdata/tigris/server/defaults"
"github.com/tigrisdata/tigris/server/metrics"
"github.com/tigrisdata/tigris/server/request"
"github.com/tigrisdata/tigris/util"
ulog "github.com/tigrisdata/tigris/util/log"
"google.golang.org/grpc"
"google.golang.org/grpc/metadata"
"google.golang.org/protobuf/proto"
)
type wrappedStream struct {
*middleware.WrappedServerStream
measurement *metrics.Measurement
reqStatus *metrics.RequestStatus
setServerTimingHeader bool
}
func getNoMeasurementMethods() []string {
return []string{
api.HealthMethodName,
}
}
func measureMethod(fullMethod string) bool {
for _, method := range getNoMeasurementMethods() {
if method == fullMethod {
return false
}
}
return true
}
func logError(ctx context.Context, err error, reqType string) {
httpCode := 999 // Integer value for the unknown response code
userAgent := defaults.UnknownValue
message := defaults.UnknownValue
var tigrisErr *api.TigrisError
if grpcMetaData, grpcMetaDataFound := metadata.FromIncomingContext(ctx); grpcMetaDataFound {
if userAgents, userAgentFound := grpcMetaData["user-agent"]; userAgentFound {
userAgent = userAgents[0]
}
}
if errors.As(err, &tigrisErr) {
message = tigrisErr.Message
httpCode = api.ToHTTPCode(tigrisErr.Code)
}
log.Error().Err(err).Int("HTTP response", httpCode).Str("message", message).Str("user-agent", userAgent).Str("request type", reqType).Msg("grpc request error")
}
func measureUnary() func(ctx context.Context, req any, info *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (any, error) {
return func(ctx context.Context, req any, info *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (any, error) {
var reqStatus *metrics.RequestStatus
if !measureMethod(info.FullMethod) {
resp, err := handler(ctx, req)
return resp, err
}
reqMetadata, err := request.GetRequestMetadataFromContext(ctx)
ulog.E(err)
reqStatus = metrics.NewRequestStatus(reqMetadata.GetNamespace())
tags := reqMetadata.GetInitialTags()
measurement := metrics.NewMeasurement(util.Service, info.FullMethod, metrics.GrpcSpanType, tags)
measurement.AddTags(metrics.GetProjectBranchCollTags(reqMetadata.GetProject(), reqMetadata.GetBranch(), reqMetadata.GetCollection()))
measurement.AddTags(map[string]string{
"sub": reqMetadata.Sub,
"human": strconv.FormatBool(reqMetadata.IsHuman),
})
ctx = measurement.StartTracing(ctx, false)
ctx = reqStatus.SaveRequestStatusToContext(ctx)
resp, err := handler(ctx, req)
if err != nil {
// Request had an error
measurement.SetError()
measurement.CountErrorForScope(metrics.RequestsErrorCount, measurement.GetRequestErrorTags(err))
measurement.AddReceivedBytes(proto.Size(req.(proto.Message)))
_ = measurement.FinishWithError(ctx, err)
measurement.RecordDuration(metrics.RequestsErrorRespTime, measurement.GetRequestErrorTags(err))
logError(ctx, err, "unary")
return nil, err
}
if err = setHeadersToUnary(ctx, resp, measurement); err != nil {
return nil, err
}
// Request was ok
measurement.SetNDocs(reqStatus.GetResultDocs())
measurement.CountOkForScope(metrics.RequestsOkCount, measurement.GetRequestOkTags())
measurement.AddReceivedBytes(proto.Size(req.(proto.Message)))
measurement.AddSentBytes(proto.Size(resp.(proto.Message)))
measurement.CountReceivedBytes(metrics.BytesReceived, measurement.GetNetworkTags())
measurement.CountSentBytes(metrics.BytesSent, measurement.GetNetworkTags())
_ = measurement.FinishTracing(ctx)
measurement.RecordDuration(metrics.RequestsRespTime, measurement.GetRequestOkTags())
// Global status and metrics related to them, config switches are handled inside these
metrics.GlobalSt.RecordRequestToActiveChunk(reqStatus, reqMetadata.GetNamespace())
measurement.CountUnits(reqStatus, measurement.GetGlobalStatusTags())
return resp, err
}
}
func measureStream() grpc.StreamServerInterceptor {
return func(srv any, stream grpc.ServerStream, info *grpc.StreamServerInfo, handler grpc.StreamHandler) error {
var reqStatus *metrics.RequestStatus
wrapped := &wrappedStream{WrappedServerStream: middleware.WrapServerStream(stream)}
wrapped.WrappedContext = stream.Context()
if !measureMethod(info.FullMethod) {
err := handler(srv, wrapped)
return err
}
reqMetadata, err := request.GetRequestMetadataFromContext(wrapped.WrappedContext)
if err != nil {
ulog.E(err)
}
reqStatus = metrics.NewRequestStatus(reqMetadata.GetNamespace())
tags := reqMetadata.GetInitialTags()
measurement := metrics.NewMeasurement(util.Service, info.FullMethod, metrics.GrpcSpanType, tags)
wrapped.measurement = measurement
wrapped.reqStatus = reqStatus
wrapped.WrappedContext = reqStatus.SaveRequestStatusToContext(wrapped.WrappedContext)
wrapped.WrappedContext = measurement.StartTracing(wrapped.WrappedContext, false)
err = handler(srv, wrapped)
if err != nil {
measurement.SetError()
measurement.CountErrorForScope(metrics.RequestsErrorCount, measurement.GetRequestErrorTags(err))
_ = measurement.FinishWithError(wrapped.WrappedContext, err)
measurement.RecordDuration(metrics.RequestsErrorRespTime, measurement.GetRequestErrorTags(err))
logError(wrapped.WrappedContext, err, "stream")
ulog.E(err)
} else {
ulog.E(setHeadersToStream(wrapped))
measurement.CountOkForScope(metrics.RequestsOkCount, measurement.GetRequestOkTags())
_ = measurement.FinishTracing(wrapped.WrappedContext)
measurement.RecordDuration(metrics.RequestsRespTime, measurement.GetRequestOkTags())
}
// Global status and metrics related to them, config switches are handled inside these
metrics.GlobalSt.RecordRequestToActiveChunk(reqStatus, reqMetadata.GetNamespace())
measurement.CountUnits(reqStatus, measurement.GetGlobalStatusTags())
// The actual bytes are counted in RecvMsg during streaming
measurement.CountReceivedBytes(metrics.BytesReceived, measurement.GetNetworkTags())
// The actual bytes are counted in SendMsg during streaming
measurement.CountSentBytes(metrics.BytesSent, measurement.GetNetworkTags())
wrapped.WrappedContext = reqStatus.SaveRequestStatusToContext(wrapped.WrappedContext)
return err
}
}
func (w *wrappedStream) RecvMsg(m any) error {
recvErr := w.ServerStream.RecvMsg(m)
if recvErr != nil {
log.Error().Err(recvErr).Interface("message", m).Msg("stream receive message error")
}
if w.measurement == nil {
return recvErr
}
if len(w.measurement.GetProjectCollTags()) == 0 {
// The request is not tagged yet with db and collection, need to do it on the first message
project, branch, coll := request.GetProjectAndBranchAndColl(m)
reqMetadata, err := request.GetRequestMetadataFromContext(w.WrappedContext)
if err != nil {
if config.DefaultConfig.Metrics.DebugMessages {
log.Debug().Str("error", err.Error()).Msg("error while getting request metadata, not measuring")
}
return recvErr
}
reqMetadata.SetProject(project)
reqMetadata.SetBranch(branch)
reqMetadata.SetCollection(coll)
w.measurement.AddTags(map[string]string{
"human": strconv.FormatBool(reqMetadata.IsHuman),
})
w.WrappedContext = reqMetadata.SaveToContext(w.WrappedContext)
w.measurement.AddProjectBranchCollTags(project, branch, coll)
}
w.measurement.AddReceivedBytes(proto.Size(m.(proto.Message)))
return recvErr
}
func (w *wrappedStream) SendMsg(m any) error {
err := setHeadersToStream(w)
if ulog.E(err) {
return err
}
err = w.ServerStream.SendMsg(m)
if err != nil {
log.Error().Err(err).Interface("message", m).Msg("stream send message error")
}
if w.measurement == nil {
return nil
}
if !w.measurement.IsFirstDocSent() {
// The request is not tagged yet with db and collection, need to do it on the first message
project, branch, coll := request.GetProjectAndBranchAndColl(m)
reqMetadata, err := request.GetRequestMetadataFromContext(w.WrappedContext)
if err != nil {
if config.DefaultConfig.Metrics.DebugMessages {
log.Debug().Str("error", err.Error()).Msg("error while getting request metadata, not measuring")
}
return nil
}
reqMetadata.SetProject(project)
reqMetadata.SetBranch(branch)
reqMetadata.SetCollection(coll)
w.measurement.AddTags(map[string]string{
"human": strconv.FormatBool(reqMetadata.IsHuman),
})
// Sets the flag so first time processing does not happen with subsequent documents
w.measurement.MarkFirstDocSent()
w.measurement.RecordDuration(metrics.RequestsRespTimeToFirstDoc, w.measurement.GetRequestOkTags())
reqMetadata.SaveToContext(w.WrappedContext)
w.WrappedContext = reqMetadata.SaveToContext(w.WrappedContext)
w.measurement.AddProjectBranchCollTags(project, branch, coll)
}
w.measurement.AddSentBytes(proto.Size(m.(proto.Message)))
return nil
}